Littelfuse
HRDS321
1 / 1
Description
Operation (Single Shot) Input voltage must be applied before and during timing. Upon momentary or maintained closure of the initiate switch, the output relay energizes for a measured interval of time. At the end of the delay, the output de-energizes. Opening or reclosing the initiate switch during timing has no affect on the time delay. The output will energize if the initiate switch is closed when input voltage is applied. Reset: Reset occurs when the time delay is complete and the initiate switch is opened. Loss of input voltage resets the time delay and output.- Part Number
- HRDS321
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Specifications
- Input Voltage (V)
- 24VDC
- Input Tolerance (%)
- -15% - 20%
- Output Type
- Electromechanical relay
- Output Form
- Non-isolated SPDT
- Output Load Rating (VA)
- General Purpose: SPDT-NO: 125/240VAC ≅ 30A; SPDT-NC≅15A; Resistive: SPDT-NO≅30A for 125/240VAC 20A for 28VDC; SPDT-NC≅15A for 125/240VAC 10A for 28VDC; Motor Load: SPDT-NO≅1 hp for 125VAC 2hp for 240VAC; SPDT-NC≅1/4hp for 125VAC 1hp for 240VAC
- Time Delay Type
- Microcontroller circuitry
- Time Delay Range
- 1 - 100s onboard adjustable
- Time Delay Tolerance (%)
- ±5%
- Reset Time (ms)
- ≤150ms
- Initiate Time (ms)
- ≤20ms
- Repeat Accuracy (%)
- ±0.5% or 20ms whichever is greater
- Setpoint vs Ambient Temperature and Operating Voltage (%)
- ≤ ±2%
- Surge Protection
- IEEE C62.41-1991 Level A
- Insulation Resistance
- ≥100 MΩ
- Dielectric Breakdown
- ≥2000V RMS terminals to mounting surface
- Circuitry
- Encapsulated
- Polarity
- DC units are reverse polarity protected
- Life
- Mechanical - 1 x 106; Electrical - 1 x 105 3 x 104 for 1hp 6 000 for 1/4hp 1hp and 2hp
- Power Consumption
- ≤2W
- Termination Type
- 0.25 in. (6.35mm) male quick connect terminals
- Mounting Method
- Surface mount with one #10 (M5 x 0.8) screw
- Operating Temperature
- -40° to 60°C (-40°F to 140°F)
- Storage Temperature (F/C)
- -40° to 85°C (-40°F to 185°F)
- Humidity
- 95% relative non-condensing
- Dimensions
- 3.00 x 2.00 x 1.50 in. (76.7 x 51.3 x 38.1mm)
- Weight (lbs/g)
- ≅3.9oz (111g)
- Sample capable
- No
Documents
Data Sheet
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